Set in a sports club in operation, healthy, athletic girls take on SOD's proud "Life is Full of Ups and Downs Game"!! The content of the grid is even more extreme, and the embarrassment and excitement are at the highest level in the series' history!! The gym is in an uproar as the various missions are carried out in the pool and gym, and the participants are blushing (hearts). This is the most erotic experience they've ever had in their lives!!